Boiler.



No. 860,728. PATENTED JULY 23, 1907. 0. U. & J. W. GHENOWBTH.

v BOILER.

UNITED STATES PATENT oEEIoE.

OSCAR URIAH OHENOWETH AND JESSE W. CHENOWETH, OF OTTERBEIN, INDIANA.

BOILER.

Specification of Letters Patent.

rammed July 23, 1907.

To all whom it may concern:

Be it known that we, OSCAR URIAH OHENOWETH and JEssE W. CnENowETH,citizens of the United States, residing at Otterbein, in the county ofBenton and State of Indiana, have invented certain new and usefulImprovements in Flash-Boilers, of which the following is aspecification.

Our invention relates to flash boilers of the type usually used inautomobiles and has for its object the provision of a boiler of thischaracter constructed in such manner that all of the parts thereof maybe efficiently heated and also constructed in such manner that theconnecting pipes between the unit coils, which combine to form theboiler, serve as water traps to prevent a circulation being set up inthe boiler.

Further objects and advantages of the invention will be set forth in thedetailed description which now follows:

In the accompanying drawing: Figure l is a side elevation of a flashboiler constructed in accordance with our invention, with the coilsslightly separated to preserve the clearness of the drawing, and Fig. 2is a plan view of the boiler shown in Fig. 1.

Like numerals designate corresponding parts in both of the figures ofthe drawing. v

The boiler forming the subject matter of the present invention consistsof a plurality of units, each of said units consisting of two coils, thelower of said coils being in the form of a spiral and the upper of saidcoils being formed of a series of radial loops. These units areconnected by pipes which extend vertically at the sides of theboiler,and pipes which extend horizontally across the top of the boiler, byvirtue of which latter construction water traps are formed between eachof the units and circulation directly through the boiler is therebyprevented.

It is to be understood that all the coils will lie in contact with eachother, the radial loops serving as spacing members to space the spiralcoils from each other. In order to preserve the clearness oi the drawingand to describe with exactitude the method of operation of the boiler,the coils have been shown slightly separated in Fig. 1 instead of incontact with each other.

Referring to the drawing, the numeral 5 designates the spiral coil ofthe first unit, while the numeral 6 designates the radial loop coil ofsaid unit. The numeral 7 designates the spiral coil of the second unit,while the numeral 8 designates the radial loop coil of said second unit.The numeral 9 designates the spiral coil of the third unit, while thenumeral 10 designates the radial loop coil of said third unit. Thenumeral 11 designates the spiral coil of the fourth unit, while thenumeral 12 designates the radial loop coil of said fourth unit. Ahorizontal pipe 13 which extends across the top of the boiler and avertical pipe 14 connect the coil 6 of the first unit with the coil 7 ofthe second unit. A vertical pipe 15, a horizontal pipe 16 and a verticalpipe 17 connect the coil 8 of the second unit with the coil 9 of thethird unit. A vertical pipe 18, a horizontal pipe 19 and a vertical pipe20 connect the coil 10 of the third unit with the coil 11 of the fourthunit. A vertical pipe 21, a horizontal pipe 22 and a pipe 23 connect thecoil 12 of the fointh unit to the engine, not shown. A

This boiler is formed of tubing which may be located over any desiredform of burner. The coil 5 is connected at 25 to a source of watersupply. The water flows through the spiral coil 5 and rises at 26 to thecoil 6. It will be understood that in its passage through the boiler thewater will be converted into steam, the Water or steam passing from coil6 through pipes 13 and 14 to coil 7. It rises from coil 7 at 27 to coil8, passing thence through pipes 15, 16, and 17 to coil 9. It rises at 28from coil 9 to'coil 10, passing thence through pipes 18, 19, and 20 tocoil 11. It rises from coil 11 at 29 to coil 12, passing from coil 12through the pipes 21, 22 and 23 to the engine, having by this time beenconverted into superheated steam.

It is apparent that any number of units may be employed to form theboiler. These units are counterparts of each other and it is onlynecessary to supply vertical and horizontal connecting tubes to build upa boiler of any desired size. It is als apparent that by virtue of thisconstruction a burned out unit may be removed and another substitutedtherefor without disturbing any of the other units.

It is apparent from the foregoing description-that the present boilercomprises a plurality of units, each of said units consisting of twocoils, the water first entering the lowermost coil of the upper unit,rising thence to the upper coil of the upper unit, passing thence to thelower coil of the second unit, then rising to the upper coil of thesecond unit, then passing to the lower coil of the third unit, thenrising to the upper coil of the third unit, and so on through whatevernumber of units the'boiler may consist of.

By referring to Fig. 2 of the drawing, it will be seen that the verticalconnecting pipes which connect the various units are all located uponopposite sides of the boiler instead of being spaced around said boiler.It is by virtue of this construction that we are enabled to remove oneof the coils without disconnecting the rest of the coils, for bylocating these vertical pipes at the opposite sides of the boiler anopen space is left at the front or rear of the boiler through which anysingle unit may be withdrawn if said unit should be burned out.

A boiler constructed as herein set forth is very light and presentsconsiderable of its area to the action of the flames. It consequentlysteams rapidly.

While the elements herein shown and described are well adapted to servethe purposes for which they are intended, it is to be understood thatour invention is What we claim, is:

1. A boiler of the character described, comprising a plurality of units,each of said units comprising two coils one of said coils being spirallyformed and the other of said coils being formed of a series of radialloops, and pipes for connecting the upper coil of each unit with thelower coil of the next lower unit, said pipes extending across the topof the boiler and forming water traps.

2. A boiler of the character described, comprising a plurality of unitseach of said units comprising two coils and tubes for connecting theupper coil of each unit with the lower coil of the next lower unit, saidtubes comprising vertical portions and horizontal portions, saidhorizontal portions extending across the top of the boiler and saidvertical portions of all of the tubes being located at the sides of theboiler, leaving an unobstructed space at the front of the boiler throughwhich any of the units may be withdrawn.

3. A boiler of the character described comprising a plurality of units,each of said units comprising two coils one of said coils being spirallyformed and the other of .said coils being formed of a series of radialloops, and

pipes for connecting the upper coil of each unit with the lower coil ofthe next lower unit, said pipes comprising vertical portions andhorizontal portions, the horizontal portions oi. said pipes extendingacross the top of the boiler and the vertical portions of said pipesbeing located upon opposite sides of the boiler, thereby leaving anunobstructed space through which any of the units may be withdrawn, saidconnecting pipes forming water traps.

In testimony whereof we afiix our signatures in presence of twowitnesses.

OSCAR URIAH CHENOWETH. JESSE W. CHENOWETH.

Witnesses CHANDLER A. \VALSH, F. E. STEVENSON.

